Bye, backlog. Your new iPhone X could ship overnight

From he moment it first went on sale, the iPhone X has been on back-order, with buyers waiting weeks for their device to arrive.

Now, shipping estimates for the iPhone X have improved to allow for free next-day delivery or same-day pickup, on the US Apple store website. The free next-day delivery applies to all in-stock products purchased before 3pm local time on Dec. 22.

Now playing:Watch this:
iPhone 8, 8 Plus or X: Which should you get?

3:42

Apple fans in the UK can also get next-business-day delivery on any in-stock iPhone ordered by 7 p.m. local time. The promotion is only happening in certain countries (sorry, Australia), but iPhone X shipping estimates have improved across the board to accommodate the holiday crush.

There is a catch, though (isn't there always?). One-day shipping only applies as long as stock lasts. If the 256GB version sells out, for example, you could face renewed delay.

The iPhone X is Apple's most ambitious and costly iPhone ever made. It trades in the home button for face unlocking using the front-facing camera, introduces new navigation gestures and gets a taller, slimmer, more vibrant screen. It's also been one of the most in-demand phones, with shipping estimates stretching as far as 5-6 weeks out. Fortunately, shipping estimates have gotten significantly shorter in the past few days. Free one-day shipping is the speediest estimate we've seen so far.